I had this bug too. Funny enough, I went on to fight things and realized it had made my character unable to be damaged by literally anything. However it was still possible to attack things without triggering combat.
It was fun to abuse this for awhile but then it just felt like cheating so now I'm sad I will have to revert back to the old save in order to fix it. Oh well.
Last edited by Reaverx; 17/09/17 05:38 AM.